Synonyms for Open and shut:

• adj.

  •apparent (adjective)
  • indubitable,
  • observable,
  • conspicuous,
  • overt,
  • unambiguous,
  • palpable,
  • visible,
  • open,
  • barefaced,
  • discernible,
  • transparent,
  • crystal clear,
  • perceivable,
  • understandable,
  • distinct,
  • manifest,
  • marked.
  •beyond doubt (adjective)
  • indisputable.
  •clear (adjective)
  • express,
  • knowable,
  • coherent,
  • lucent,
  • pronounced,
  • perceptible,
  • unquestionable,
  • legible,
  • audible,
  • crystal,
  • precise,
  • comprehensible,
  • perspicuous,
  • sharp,
  • definite,
  • incontrovertible,
  • intelligible.
  •conspicuous (adjective)
  • open-and-shut.
  •evident (adjective)
  • fact,
  • tangible,
  • plain as day,
  • axiomatic,
  • reasonable,
  • logical.
  •indisputable (adjective)
  • certain,
  • irrefutable,
  • actual,
  • positive,
  • real,
  • true,
  • undoubted,
  • sure,
  • unassailable,
  • accurate,
  • incontestable,
  • absolute.
  •noticeable (adjective)
  • outstanding,
  • remarkable,
  • arresting,
  • sensational,
  • Arrestive,
  • signal,
  • out-standing,
  • salient,
  • appreciable,
  • notable,
  • striking,
  • eye-catching,
  • spectacular,
  • can't miss it,
  • noteworthy,
  • pointed,
  • prominent.
  •open (adjective)
  • free,
  • mellow,
  • natural,
  • guileless,
  • lay it on the line,
  • impartial,
  • fair,
  • up-front,
  • objective,
  • disinterested,
  • receptive,
  • unreserved,
  • on the level,
  • ingenuous,
  • innocent,
  • talking turkey,
  • openhearted,
  • uncommitted,
  • artless,
  • unbiased,
  • unprejudiced.
  •open-and-shut (adjective)
  • self-evident,
  • in the bag,
  • sewn up,
  • routine,
  • cut and dried,
  • ordinary,
  • clear-cut,
  • clear as a bell,
  • guaranteed,
  • assured,
  • distinguishable,
  • glaring,
  • plain,
  • easy,
  • conclusive,
  • undisguised,
  • nailed down,
  • Cinched,
  • iced,
  • straightforward.
  •patent (adjective)
  • downright,
  • exclusive,
  • controlled,
  • blatant,
  • gross,
  • flagrant,
  • limited,
  • rank.
  •plain (adjective)
  • broad.
  •simple (adjective)
  • mere,
  • discreet,
  • lowly,
  • single,
  • vanilla,
  • homey,
  • unadorned,
  • unmixed,
  • unembellished,
  • unadulterated,
  • unfussy,
  • humble,
  • folksy,
  • classic,
  • unaffected,
  • spartan,
  • uncombined,
  • rustic,
  • unpretentious,
  • unqualified,
  • elementary,
  • unblended,
  • clean,
  • undecorated,
  • unmitigated,
  • unostentatious,
  • pure and simple,
  • unornamented,
  • inelaborate,
  • homely,
  • uncompounded,
  • sheer,
  • modest,
  • pure,
  • unalloyed,
  • unelaborate,
  • not complex,
  • austere.
  •unavoidable (adjective)
  • set,
  • unescapable,
  • Inevasible,
  • locked up,
  • necessary,
  • compulsory,
  • inescapable,
  • obligatory,
  • impending,
  • fated,
  • ineluctable,
  • Ineludible,
  • inexorable,
  • inevitable.
  •undeniable (adjective)
  • binding,
  • for sure,
  • sure thing,
  • inarguable,
  • sound.
  •unequivocal (adjective)
  • decisive,
  • direct,
  • decided,
  • categorical,
  • straight,
  • flat out,
  • undisputable,
  • no holds barred.
  •unvarnished (adjective)
  • genuine,
  • naked,
  • candid,
  • bare,
  • Undissembled,
  • frank,
  • unconcealed,
  • sincere,
  • stark,
  • for real.

• Other synonyms:

  •adj.
  • evident,
  • explicit,
  • lucid,
  • obvious,
  • readable,
  • recognizable,
  • self-explanatory,
  • uncomplicated,
  • veridical,
  • no fine print,
  • spelled out,
  • apparent,
  • apprehensible,
  • beyond doubt,
  • beyond question,
  • clear,
  • for certain,
  • graspable,
  • noticeable,
  • patent,
  • simple,
  • unanswerable,
  • unavoidable,
  • undeniable,
  • under one's nose,
  • unequivocal,
  • univocal,
  • unmistakable,
  • unvarnished,
  • Transpicuous,
  • Uncontestable,
  • double checked,
  • out in the open,
  • big as life,
  • that fact,
  • clear cut,
  • double-checked,
  • loud enough,
  • make no bones,
  • no catch,
  • no ifs and or buts,
  • no ifs ands or buts,
  • no ifs ands or buts about it,
  • no mistake,
  • no strings attached,
  • straight out,
  • that's a fact,
  • unblurred,
  • unfabled.

Antonyms for Open and shut:

• adj.

  • apparent
    dubious, obscure, Obscured, indefinite, invisible, questionable, unnoticeable, dark, indistinct, dull, secret, unintelligible, doubtful, real, improbable, hidden, uncertain, vague, unknown, unsure, unlikely, equivocal, inconspicuous, Mistakable, concealed, unclear.
  • clear
    mysterious, closed, shadowy, undefined, responsible, fuzzy, culpable, cloudy, inexact, smudged, foggy, clouded, guilty, complicated, dim, clogged, Hindered, ambiguous, congested, blocked, gloomy, imprecise, difficult.
  • conspicuous
    unseen.
  • indisputable
    refutable, disputable, unreliable.
  • noticeable
    insignificant, forgotten, common, unimportant, normal, ordinary, usual, unremarkable, overlooked, imperceptible, inconsequential.
  • open
    shifty, unjust, unfair, prejudiced, unavailable, lying, certain, tricky, inaccessible, biased, decided, fastened, obstructed, definite, deceptive, subjective, uncommon, sure, locked, shut.
  • patent
    moral, unlimited, unrestricted, clean, partial, part.
  • plain
    beautiful, incomprehensible, pretty, attractive, formal, dressed-up.
  • simple
    dirty, impure, intricate, smart, embellished, exacting, abnormal, on-the-ball, unchaste, immodest, jumbled, intelligent, abstruse, sophisticated, cluttered, extraordinary, decorated, mature, complex, aware, older, polluted, convoluted, ornate.
  • unavoidable
    optional, avoidable, voluntary, Escapable.
  • undeniable
    unproven, contestable, doubted.
  • unequivocal
    conditional.
  • unmistakable
    doubtul.
  • unvarnished
    devious, deceitful, dishonest, Falsified.